html页面上调用avcon_set()总是提示502 - Bad Gateway 错误。
服务器的cgi-bin/admin下放了一个avconsetting.lua的服务本,内容为
#!/usr/bin/lua
print("succeed")
客户端js脚本如下:
function createxmlhttprequest(){
var xmlhttp=false;
try{
xmlhttp=new ActiveXObject("Msxm12.XMLHTTP");
}catch(e){
try{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e){
try{
xmlhttp=new XMLHttpRequest();
}catch(e){
}
}
}
return xmlhttp;
}
function avcon_set()
{
var xmlhttp=createxmlhttprequest();
//xmlhttp.responseXML;
xmlhttp.open("POST", "/cgi-bin/admin/avconsetting.lua", true);
xmlhttp.onreadystatechange=function(){
if(xmlhttp.readyState==4){
if(xmlhttp.status==200){
alert("ok");
/*if (s==2 && unescape(xmlhttp.responseText) == "succeed"){
alert("succeed");
}else if(s !=2 || unescape(xmlhttp.responseText) == "failed"){
alert("failed");
}*/
}
else
{
alert("error:"+ xmlhttp.status + ":" + xmlhttp.statusText);
}
}
}
xmlhttp.send(null);
}
html页面上调用avcon_set()总是提示502 - Bad Gateway 错误。
6 个解决方案
#1
兄弟帮你顶一下,你是做什么工作的呢?那儿用Lua呢?我以前听过这种脚本语言,但没接触过,想和你了解一下,呵呵
#2
你可以试试在lua脚本前面加上
io.write("Content-Type: text/plain\n\n")
io.write("Content-Type: text/plain\n\n")
#3
ngx_lua_module-1.0.5.0 (LUA编写网页脚本,支持windows和linux)
http://blog.csdn.net/ngwsx/article/details/6648779
http://blog.csdn.net/ngwsx/article/details/6648779
#4
ngx_lua_module-1.0.5.0 (LUA编写网页脚本,支持windows和linux)
http://blog.csdn.net/ngwsx/article/details/6648779
http://blog.csdn.net/ngwsx/article/details/6648779
#5
注:最新版本在以下博客首发:
http://blog.csdn.net/ngwsx/
ngx_lua_module是一个nginx http模块,它把lua解析器内嵌到nginx,用来解析并执行lua语言编写的网页后台脚本。
更新说明:
*) 更改LUA表的名称,具体如下:
nginx.dbd变成nginx.database;
nginx.log变成nginx.logger;
nginx.req变成nginx.request;
nginx.resp变成nginx.response;
nginx.var变成nginx.variable。
*) 重新实现nginx.database表,原有函数全部去掉,新增execute函数,
简化了LUA代码中的数据库操作。具体请查看下面示例代码的用法。
*) ngx_lua_module模块核心代码的优化。
特性:
*) HTML网页中内嵌LUA脚本代码,类似于PHP。
*) 支持非阻塞的数据库操作,目前只支持MYSQL。
API说明:
*) nginx 表
*) nginx.database 表
提供数据库操作的接口,这些接口的内部实现是基于非阻塞模式的,
因此不会阻塞Nginx的事件处理,可以支持比较高的并发。
具体用法请查看下面的示例代码。
*) nginx.logger 表
Nginx日志接口的封装,允许在LUA代码写日志信息到Nginx的日志文件中。
具体用法请查看下面的示例代码。
*) nginx.request 表
提供与HTTP请求有关的接口,可以获取请求参数、请求头和Cookie值。
具体用法请查看下面的示例代码。
*) nginx.response 表
提供与HTTP响应有关的接口。
具体用法请查看下面的示例代码。
*) ngnx.variable 表
提供接口给LUA代码以获取Nginx的HTTP变量。
具体用法请查看下面的示例代码。
TODO:
*) API说明文档。
*) 更多实用功能的LUA表和接口实现,
例如多台机器之间会话(Session)共享的透明处理。
最新版本:
windows:https://github.com/downloads/hehaiqiang/ngwsx/ngx_lua_module-windows-1.0.5.1.rar
linux:(暂无)
历史版本:
https://github.com/hehaiqiang/ngwsx/downloads
示例代码:
index.lsp
<%
local req = nginx.request
--local name = req["name"]
--local name = req.name
if req.method == req.GET then
name = req.get["name"]
name = req.get.name
else
name = req.post["name"]
name = req.post.name
end
name = name or "world"
%>
<html>
<head><title>hello, <%=name%>!</title></head>
<body>
hello, <%=name%>!
<hr>
<form action="index.lsp" method="post">
<input type="text" name="name"/>
<input type="submit" value="submit"/>
</form>
</body>
</html>
test_database.lsp
<%
local print = print
local nginx = nginx
local req = nginx.request
local db = nginx.database
local res = db.execute({
driver = "libdrizzle",
host = "127.0.0.1",
port = 3306,
user = "root",
password = "123456",
database = "mysql",
sql = "show databases"
})
%>
<html>
<head>
</head>
<body>
err: <%=res.err%>
<br/>
errstr: <%=res.errstr%>
<br/>
col_count: <%=res.col_count or ""%>
<br/>
row_count: <%=res.row_count or ""%>
<br/>
affected_rows: <%=res.affected_rows or ""%>
<br/>
insert_id: <%=res.insert_id or ""%>
<br/>
<% if res.err ~= 0 then print("error") return end %>
<hr>
<table border="1">
<tr>
<% for i=1,#res.columns do %>
<td><b><%=res.columns[i]%></b></td>
<% end %>
</tr>
<% for r=1,#res.rows do %>
<tr>
<% for i=1,#res.rows[r] do %>
<td><%=res.rows[r][i]%></td>
<% end %>
</tr>
<% end %>
</table>
<hr>
request_time: <%=req.request_time%>ms
</body>
</html>
test_logger.lsp
<%
local print = print
local nginx = nginx
local log = nginx.logger
%>
<html>
<head>
</head>
<body>
<%
-- writing some messages into the log file of the nginx
log.error(log.ALERT, "test alert" .. 1 .. 10)
log.debug(log.DEBUG_HTTP, "test debug http")
log.error(log.ERR, "test error")
log.error(log.EMERG, 1000)
%>
please opening the log file of the nginx to view messages.
</body>
</html>
test_request.lsp
<%
local print = print
local nginx = nginx
local req = nginx.request
local get_req_members = function()
return {
uri = req.uri,
args = req.args,
host = req.host,
exten = req.exten,
method = req.method,
referer = req.referer,
user_agent = req.user_agent,
method_name = req.method_name,
request_time = req.request_time .. "ms",
request_line = req.request_line,
unparsed_uri = req.unparsed_uri,
http_protocol = req.http_protocol
}
end
function get_headers_members()
local headers = req.headers
return {
host = headers.host,
user_agent = headers.user_agent
}
end
%>
<html>
<head>
</head>
<body>
<table border="1">
<% for k,v in pairs(get_req_members()) do %>
<tr><td><%=k%></td><td><%=v%></td></tr>
<% end %>
</table>
<hr>
<table border="1">
<% for k,v in pairs(get_headers_members()) do %>
<tr><td><%=k%></td><td><%=v%></td></tr>
<% end %>
</table>
<%
-- TODO: test the table "req.cookies"
%>
<hr>
<%
local one = req["one"] or 1
local two = req.two or 2
local three = req.get["three"] or 3
local four = req.get.four or 4
%>
hello, <%=one%><%=two%><%=three%><%=four%>!
</body>
</html>
test_response.lsp
<%
local print = print
local nginx = nginx
local req = nginx.request
local resp = nginx.response
resp.content_type = "text/html"
%>
<html>
<head><title></title></head>
<body>
<%
local one = req["one"] or 1
local two = req.two or 2
local three = req.post["three"] or 3
local four = req.post.four or 4
%>
hello, <%=one%><%=two%><%=three%><%=four%>!
<hr>
<form action="test_response.lsp" method="post">
<input type="text" name="one"/>
<input type="text" name="two"/>
<input type="text" name="three"/>
<input type="text" name="four"/>
<input type="submit" value="submit"/>
</form>
<hr>
</body>
</html>
test_variable.lsp
<%
local print = print
local nginx = nginx
local var = nginx.variable
local array = {
--var.arg_PARAMETER or "",
args = var.args or "",
binary_remote_addr = var.binary_remote_addr or "",
body_bytes_sent = var.body_bytes_sent or "",
content_length = var.content_length or "",
content_type = var.content_type or "",
--var.cookie_COOKIE or "",
document_root = var.document_root or "",
document_uri = var.document_uri or "",
host = var.host or "",
hostname = var.hostname or "",
--var.http_HEADER or "",
user_agent = var.http_user_agent or "",
is_args = var.is_args or "",
limit_rate = var.limit_rate or "",
nginx_version = var.nginx_version or "",
query_string = var.query_string or "",
remote_addr = var.remote_addr or "",
remote_port = var.remote_port or "",
remote_user = var.remote_user or "",
request_filename = var.request_filename or "",
request_body = var.request_body or "",
request_body_file = var.request_body_file or "",
request_completion = var.request_completion or "",
request_method = var.request_method or "",
request_uri = var.request_uri or "",
scheme = var.scheme or "",
server_addr = var.server_addr or "",
server_name = var.server_name or "",
server_port = var.server_port or "",
server_protocol = var.server_protocol or "",
uri = var.uri or ""
}
%>
<html>
<head>
</head>
<body>
<%=#array%>
<hr>
<table border="1">
<% for k,v in pairs(array) do %>
<tr><td><%=k%></td><td><%=v%></td></tr>
<% end %>
</table>
</body>
</html>
#6
对于CGI来说 Content-Type 是必不可少的
#1
兄弟帮你顶一下,你是做什么工作的呢?那儿用Lua呢?我以前听过这种脚本语言,但没接触过,想和你了解一下,呵呵
#2
你可以试试在lua脚本前面加上
io.write("Content-Type: text/plain\n\n")
io.write("Content-Type: text/plain\n\n")
#3
ngx_lua_module-1.0.5.0 (LUA编写网页脚本,支持windows和linux)
http://blog.csdn.net/ngwsx/article/details/6648779
http://blog.csdn.net/ngwsx/article/details/6648779
#4
ngx_lua_module-1.0.5.0 (LUA编写网页脚本,支持windows和linux)
http://blog.csdn.net/ngwsx/article/details/6648779
http://blog.csdn.net/ngwsx/article/details/6648779
#5
注:最新版本在以下博客首发:
http://blog.csdn.net/ngwsx/
ngx_lua_module是一个nginx http模块,它把lua解析器内嵌到nginx,用来解析并执行lua语言编写的网页后台脚本。
更新说明:
*) 更改LUA表的名称,具体如下:
nginx.dbd变成nginx.database;
nginx.log变成nginx.logger;
nginx.req变成nginx.request;
nginx.resp变成nginx.response;
nginx.var变成nginx.variable。
*) 重新实现nginx.database表,原有函数全部去掉,新增execute函数,
简化了LUA代码中的数据库操作。具体请查看下面示例代码的用法。
*) ngx_lua_module模块核心代码的优化。
特性:
*) HTML网页中内嵌LUA脚本代码,类似于PHP。
*) 支持非阻塞的数据库操作,目前只支持MYSQL。
API说明:
*) nginx 表
*) nginx.database 表
提供数据库操作的接口,这些接口的内部实现是基于非阻塞模式的,
因此不会阻塞Nginx的事件处理,可以支持比较高的并发。
具体用法请查看下面的示例代码。
*) nginx.logger 表
Nginx日志接口的封装,允许在LUA代码写日志信息到Nginx的日志文件中。
具体用法请查看下面的示例代码。
*) nginx.request 表
提供与HTTP请求有关的接口,可以获取请求参数、请求头和Cookie值。
具体用法请查看下面的示例代码。
*) nginx.response 表
提供与HTTP响应有关的接口。
具体用法请查看下面的示例代码。
*) ngnx.variable 表
提供接口给LUA代码以获取Nginx的HTTP变量。
具体用法请查看下面的示例代码。
TODO:
*) API说明文档。
*) 更多实用功能的LUA表和接口实现,
例如多台机器之间会话(Session)共享的透明处理。
最新版本:
windows:https://github.com/downloads/hehaiqiang/ngwsx/ngx_lua_module-windows-1.0.5.1.rar
linux:(暂无)
历史版本:
https://github.com/hehaiqiang/ngwsx/downloads
示例代码:
index.lsp
<%
local req = nginx.request
--local name = req["name"]
--local name = req.name
if req.method == req.GET then
name = req.get["name"]
name = req.get.name
else
name = req.post["name"]
name = req.post.name
end
name = name or "world"
%>
<html>
<head><title>hello, <%=name%>!</title></head>
<body>
hello, <%=name%>!
<hr>
<form action="index.lsp" method="post">
<input type="text" name="name"/>
<input type="submit" value="submit"/>
</form>
</body>
</html>
test_database.lsp
<%
local print = print
local nginx = nginx
local req = nginx.request
local db = nginx.database
local res = db.execute({
driver = "libdrizzle",
host = "127.0.0.1",
port = 3306,
user = "root",
password = "123456",
database = "mysql",
sql = "show databases"
})
%>
<html>
<head>
</head>
<body>
err: <%=res.err%>
<br/>
errstr: <%=res.errstr%>
<br/>
col_count: <%=res.col_count or ""%>
<br/>
row_count: <%=res.row_count or ""%>
<br/>
affected_rows: <%=res.affected_rows or ""%>
<br/>
insert_id: <%=res.insert_id or ""%>
<br/>
<% if res.err ~= 0 then print("error") return end %>
<hr>
<table border="1">
<tr>
<% for i=1,#res.columns do %>
<td><b><%=res.columns[i]%></b></td>
<% end %>
</tr>
<% for r=1,#res.rows do %>
<tr>
<% for i=1,#res.rows[r] do %>
<td><%=res.rows[r][i]%></td>
<% end %>
</tr>
<% end %>
</table>
<hr>
request_time: <%=req.request_time%>ms
</body>
</html>
test_logger.lsp
<%
local print = print
local nginx = nginx
local log = nginx.logger
%>
<html>
<head>
</head>
<body>
<%
-- writing some messages into the log file of the nginx
log.error(log.ALERT, "test alert" .. 1 .. 10)
log.debug(log.DEBUG_HTTP, "test debug http")
log.error(log.ERR, "test error")
log.error(log.EMERG, 1000)
%>
please opening the log file of the nginx to view messages.
</body>
</html>
test_request.lsp
<%
local print = print
local nginx = nginx
local req = nginx.request
local get_req_members = function()
return {
uri = req.uri,
args = req.args,
host = req.host,
exten = req.exten,
method = req.method,
referer = req.referer,
user_agent = req.user_agent,
method_name = req.method_name,
request_time = req.request_time .. "ms",
request_line = req.request_line,
unparsed_uri = req.unparsed_uri,
http_protocol = req.http_protocol
}
end
function get_headers_members()
local headers = req.headers
return {
host = headers.host,
user_agent = headers.user_agent
}
end
%>
<html>
<head>
</head>
<body>
<table border="1">
<% for k,v in pairs(get_req_members()) do %>
<tr><td><%=k%></td><td><%=v%></td></tr>
<% end %>
</table>
<hr>
<table border="1">
<% for k,v in pairs(get_headers_members()) do %>
<tr><td><%=k%></td><td><%=v%></td></tr>
<% end %>
</table>
<%
-- TODO: test the table "req.cookies"
%>
<hr>
<%
local one = req["one"] or 1
local two = req.two or 2
local three = req.get["three"] or 3
local four = req.get.four or 4
%>
hello, <%=one%><%=two%><%=three%><%=four%>!
</body>
</html>
test_response.lsp
<%
local print = print
local nginx = nginx
local req = nginx.request
local resp = nginx.response
resp.content_type = "text/html"
%>
<html>
<head><title></title></head>
<body>
<%
local one = req["one"] or 1
local two = req.two or 2
local three = req.post["three"] or 3
local four = req.post.four or 4
%>
hello, <%=one%><%=two%><%=three%><%=four%>!
<hr>
<form action="test_response.lsp" method="post">
<input type="text" name="one"/>
<input type="text" name="two"/>
<input type="text" name="three"/>
<input type="text" name="four"/>
<input type="submit" value="submit"/>
</form>
<hr>
</body>
</html>
test_variable.lsp
<%
local print = print
local nginx = nginx
local var = nginx.variable
local array = {
--var.arg_PARAMETER or "",
args = var.args or "",
binary_remote_addr = var.binary_remote_addr or "",
body_bytes_sent = var.body_bytes_sent or "",
content_length = var.content_length or "",
content_type = var.content_type or "",
--var.cookie_COOKIE or "",
document_root = var.document_root or "",
document_uri = var.document_uri or "",
host = var.host or "",
hostname = var.hostname or "",
--var.http_HEADER or "",
user_agent = var.http_user_agent or "",
is_args = var.is_args or "",
limit_rate = var.limit_rate or "",
nginx_version = var.nginx_version or "",
query_string = var.query_string or "",
remote_addr = var.remote_addr or "",
remote_port = var.remote_port or "",
remote_user = var.remote_user or "",
request_filename = var.request_filename or "",
request_body = var.request_body or "",
request_body_file = var.request_body_file or "",
request_completion = var.request_completion or "",
request_method = var.request_method or "",
request_uri = var.request_uri or "",
scheme = var.scheme or "",
server_addr = var.server_addr or "",
server_name = var.server_name or "",
server_port = var.server_port or "",
server_protocol = var.server_protocol or "",
uri = var.uri or ""
}
%>
<html>
<head>
</head>
<body>
<%=#array%>
<hr>
<table border="1">
<% for k,v in pairs(array) do %>
<tr><td><%=k%></td><td><%=v%></td></tr>
<% end %>
</table>
</body>
</html>
#6
对于CGI来说 Content-Type 是必不可少的